Antenna shield



FIG. 1 is a left front perspective view of an antenna shield showing my new design;

FIG. 2 is a right front perspective;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a top plan view thereof that is a duplicate of a bottom plan thereof; and

FIG. 6 is a rear elevation view thereof. 

The ornamental design for an antenna shield, as shown and described. 